Mechanical movement.



J. F. UOOLEY.

MECHANICAL MOVEMENT.

APPLIUATION FILED MAR. 21, 190B.

Patented Mar. 30, 1909.

2 SHEETS-SHEET 1.

jvdia v 2 J. F. GOOLEY. MECHANIGAL MOVEMENT.

APPLICATION FILED MAR. 21, 1908.

9 1], 6, 1 4 Patented Mar. 30, 1909 2 SHEETS-SHEET 2.

UNITED STA ns earns ornion.

JOHN F. GOOLEY, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO WALTER BALL,OF

BOSTON, MASSACHUSETTS.

* can Movmmn'r.

Specification of Letters Patent. Patented March.- 30, 1909.

Application filed Hatch 21,1 1908. Serial No. 422,433.

To all whom it may concern:

Be it known that 1, JOHN F. Coonnr, a citizen of the United States, andresident of New York, in the county of New York and State of New York,have invented new and useful Improvements in Mechanical Movements, ofwhich the following is a specification.

This invention relates to a new mechanical movement by which power maybetransmitted from one rotary element or shaft to another rotary elementor shaft not axially in line with the first element, but offsettherefrom, with littleloss of power and no variation of angularvelocity.

In the accompanying drawings which illustratecertain embodiments of myinvention,- igure 1 is a vertical longitudinal justabl y mounted mcentral section of a mechanism containing my invention; Fig.2 is across-section on line 22 of Fig. 1; Fig. 3 is a vertical longitudinalcentral section of a modification of my invention in which one elementcontains a double set of bearing surfaces and in which the rolls extendthrough the bearing surfaces of the other element so as to insure abalance of strains on the rolls; and Fig. 4 is an end view of themechanism illustrated in Fig. 3.

Referring to Figs. 1 and 2 of-the drawings, the reference numeralsland'Q represent a pair of discoid elements mounted resplectively onshafts 3 and 4 which are axia y offset from'each "other and constitutepositionally fixed axes for the elements 1 and 2. Shaft 3is mounted in afixed bearing 14 supported by the standard 5 mounted on the base 6.Shaft 4 is mounted in the bearin 7 carried by support 8 which is adthesocket member 9- upon the base6. A. set screw 10 rigidly holds the shank8 and bearing 7 in the desired position elf-adjustment. Each element 1and 2, is provided with a plurality of circular bearing surfaces, thebearing surfaces of one element being distributed in radial and angularpositions corresponding with the bearing surfaces of the other element.Such bearing surfaces in element 1 are illustrated at 11 and in element2 at 12. Engaging'the several bearing surfaces of the two elements arecouplers, preferably in the form of rolling members, and herein shown asoy:

lindrical rollers 13. The elements -1 and 2 bearing surfaces 12*,extending completely' through the element 2 The rollers 13 are supportedat each end by the opposed hearing surfaces 11? of'the element 1 andextend through the bearing surfaces 12 in the element 2*. In otherrespects the construction and mode of operation is substantiallyidentical with that of the mechanism shown in Figs. 1 and 2.

The operation of the device is as follows: Rotary movement imparted toone of the rotary elements in any usual manner is transmitted to theother rotary element by means of .the rollerswhich enga e thecorresponding bearing surfaces of t e two elements. Referring to, F i 2and 4, the rollers 13, 13 at the to of he drawing, are in the positionleast e ective for causing or controllingthe motion of the driven membr, and the same is true of each successive roller when it reaches thepoint in a plane drawn through the axes of the two elements. It istherefore necessary to have a plurality of rollers and desirable to haveat least three in order that one roller at least may always be in aposition to drive the driven member, and one roller at least be in aposition to withhold the driven element against any tendency toadvance'beyond the control of the driving roller which might be the casewhen speed changes occur. A larger number of rollers than three may beused and may be found advantageous, but satisfac tory results will beobtalned by using three rollers. It is not necessary that the bearingsurfaces should be located at an equal angu'-' 'lar or equal radialdistance with relation to each other, provided they exactly correspondin size and location in one element with the opposedbearing' surfaces inthe other element. It will be noted that the rollers are engaged by thebearing surfaces at diamet rically opposite points of the rolls, whichpoints lie in a plane parallel to a plane through the axes of the twoelements.

Therefore the eccentricity of the two elements may be varied tocompensate for any wear or lost motion between the bearing surfaces, ordifferent sized rollers may be used 1 surfaces, thus allowing 1 I i I lelements, whereby rotative power may be 70 I applied. to one element,and transmitted to of the device that each roller and the bearingsurfaces engaged thereby should be of the same size as the other rollersand their respective bearing surfaces, provided that the diameter of theseveral rollers must in all cases be less than the dlameters of theirrespective bearlng surfaces by an amount equal to the offset between theaxes of the elements.

.I'cla1m:

1. In a mechanical movement, two rotary elements mounted on positionallyfixed axes said bearing surfaces and adapted to transmit rotary movementfrom one of said elements to the other without change of an gularvelocity.

2. In a mechanical movement, two rotary elements mounted on positionallyfixed axes offsetfrom each other, each element provided with-a pluralityof circular bearing surfaces distributed in like radial and angularpositions in each element, and rigid nonyielding couplers engaging andturning within the several corresponding bearing surfaces of the twoelements and adapted'to transmit rotary movement from one element to theother without change of angular velocity.

3. In a mechanical movement, two rotary elements mounted on parallelpositionally fixed axes offset from each other, each element providedwith a lurality of circular bearing surfaces distri uted in like radialand angular rollers engaglng corresponding bearing surfaces of saidelements in constant rolling contact therewith, said rollers being lessin diameter than their respective bearing surfaces by an amount equal tosaid offset between the axes of said elements, whereby rotative powermay be applied to one element, and transmitted to the other elementthrough said rollers without change of angular velocity between saidelements. i

4. In a mechanical movement, two discoid rotary elements mounted onparallel positionally fixed axes offset from each other, each elementprovided with three or more circular bearing surfaces which aredistributed in like radial and angular positions in each element, andcylindrical rollers engaging corresponding bearing surfaces of ositionsin each element, and

"the other element through said rollers with- -out change of angularvelocity between said elements. M

. 5. In a mechanical movement, two rotary elements mounted onpositionally fixed axes offset from each other, each element providedwith a circular bearing surface such bearing surface being in the sameradial position in each element, and a rigid non-yielding couplerengaging and turning within said bearing surfaces and adapted totransmit rotary movement from one of said elements to the other withoutchange of angular velocity, and means for-adjusting the extent of saidoffset between said axes and for fixing the same.

6. In a mechanical movement two discoid rotary elements mounted onparallel positionally fixed axes, one of said elements having twomembers" embracing between them the other of said elements, said membershaving three or more opposed circular bearing surfaces, and the latterof said elements also having three or more circular bearing surfacesdistributed in the same radial and angular positions as the bearingsurfaces of the former element, and cylindrical rollers engagingcorresponding bearing surfaces of said elements in constant rollingcontact at their ends in the opposed bearing surfaces of the two membersof the one element and at their middle portions in the bearing surfacesof the other element, said rollers being less in diameter than theirrespective bearing surfaces by an amount equal to said oifset'betweenthe axes of said elements, whereby rotative power applied to one elementwill be transmitted to the other element 7 without change of angularvelocity between said elements. 7 'f 7. In a mechanical movement twodiscoid' rotary elements mounted on parallel positionally fixed axes,one of said elements having two members embracing between them the otherof said elements, said members having three or more opposed circularbearing surfaces, and the latter of said elements also having three ormore circular bearin surfaces distributed in the same radial an angularpositions as the bearing surfaces of a the former element, cylindricalrollers engaging corresponding bearing surfaces of said elements inconstant rolling contact at heir ends in the opposed bearing surfaces of12%) the two members of the one element and at their middle portions inthe bearing surfaces of the other element, said rollers being less indiameter than their respective bearing surfaces by an amount equal tovsaid offset between the axes of said elements, whereby rotative powerapplied to one element will be transmitted to the other element Withoutchange of angular velocity between said elements, and means foradjusting the extent of said ofiset between said axes and for fixing thesame.

Signed by me at Boston, Massachusetts, vthis ninth day of March, 1908.

JOHN F. eeeLEY. Witnesses:

ROBERT GUSHMAN; CHARLES D. WOODBERRY.

